Patents by Inventor Paul L. Ridgway

Paul L. Ridgway has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Palladium-nitrile ligand catalyst system and oxidation processes
    Patent number: 4847421
    Abstract: A substantially chloride-free palladium oxidation system, comprising a palladium component, a copper component, and a ligand is described. The Wacker system, consisting of palladium and copper chlorides is also improved by the addition of a ligand. The palladium and copper counterion are independently selected from BF.sub.4.sup.--, CF.sub.3 COO.sup.--, CH.sub.3 COO.sup.--, SO.sub.4.sup..dbd., and NO.sub.3.sup.--. The ligand is preferably a nitrile-containing compound.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: July 11, 1989
    Assignee: Catalytica, Associates
    Inventors: Janis Vasilevskis, Paul L. Ridgway, Eric R. Evitt
  • Palladium-nitrile ligand catalyst system and oxidation process
    Patent number: 4738943
    Abstract: A substantially chloride-free palladium oxidation system, comprising a palladium component, a copper component, and a ligand is described. The Wacker system, consisting of palladium and copper chlorides is also improved by the addition of a ligand. The palladium and copper counterion are independently selected from BF.sub.4.sup.-, CF.sub.3 COO.sup.-, SO.sub.4.sup.=, and NO.sub.3.sup.-. The ligand is preferably a nitrile-containing compound.
    Type: Grant
    Filed: August 21, 1987
    Date of Patent: April 19, 1988
    Assignee: Catalytica Associates
    Inventors: Janis Vasilevskis, Paul L. Ridgway, Eric R. Evitt